Soil Often saturated long enough to become anaerobic (no oxygen) Wetland vegetation must be able to tolerate both flooding and the lack of oxygen in the soil.
Two Types of Wetlands Inland and coastal. Inland wetlands are freshwater ecosystems and include marshes, swamps, riverine wetlands, and bogs. Coastal wetlands may be either fresh or salt water and are affected by tides. Examples include tidal salt marshes, tidal freshwater marshes, and mangroves.
http://www.youtube.com/watch?v=ft_2nj96jL M http://www.youtube.com/watch?v=ft_2nj96jL M
Observation vs Inference Observation is the process of gathering information using the five senses (sight, smell, etc.). Inference is the ability to use observations to make informed decisions. For example, a group of students working on the Wetlands... inquiry observe that the red-tailed hawk is larger than most birds, has a hooked beak, and sharp claws. They infer that the hawk is a carnivore based on these observations and consequently place the hawk at the top of several food chains they are brainstorming in their group.
Food Chains/webs A food chain shows the connections between individual organisms that depend on each other for energy. A food web shows all of the energy connections among living things within a community or ecosystem.
Take out Page 25 Wetlands Are Wonderlands Thinksheet Create 10 food chains Producer – 1 st consumer (herbivore) – 2 nd consumer (carnivore) – 3 rd consumer (omnivore)
Producers A2 smartweed A7 American sycamore B3 cattail D2 phytoplankton: spyrogyra algae, euglena, diatom, volvox G5 willow trees K3 red maple K6 silver maple Consumers B5 red-winged blackbird C1 D4 painted turtle C1 E1 crayfish C1 E2 zooplankton: copepod (left), nauplius larva (center), daphnia (right) C1 F1 bluegill sunfish C2 F3 wood duck C1 F7 red shouldered hawk C3 G2 carp C3 H1 small invertebrates: tubifex worm (left), chironomid larva (center), mosquito larva (right) C1 H3 dragonfly C2 H5 great blue heron C3 J1 bullhead catfish C2 J2 green frog C3 K3 black rat snakeC2 K4 raccoon C3